Yadav, Yogesh, Preeti Goswami, and Chakradhar Vellalacheruvu. “Ossified Pterygo-Spinous Ligament: Incidence and Clinico-Anatomical Relevance in the Adult Human Skulls of North India”. International Journal of Research in Medical Sciences 2, no. 3 (January 24, 2017): 847–851. Accessed March 26, 2026. https://www.msjonline.org/index.php/ijrms/article/view/2275.